BUSINESS SEGMENT INFORMATION - GEOGRAPHIC AREA (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 27, 2020	Mar. 28, 2020	Dec. 28, 2019	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 29, 2018	Sep. 29, 2018	Jun. 27, 2020	Jun. 29, 2019	Jun. 30, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 8,866,564	$ 13,698,699	$ 15,025,042	$ 15,303,005	$ 15,474,862	$ 14,658,074	$ 14,765,707	$ 15,215,279	$ 52,893,310	$ 60,113,922	$ 58,727,324
Long-lived assets	4,458,567				4,501,705				4,458,567	4,501,705	4,521,660
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									42,803,700	48,257,385	46,812,297
Long-lived assets	3,340,920				3,361,629				3,340,920	3,361,629	3,448,164
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									4,105,236	4,660,030	4,661,615
Long-lived assets	331,196				334,177				331,196	334,177	318,410
United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									2,481,712	3,133,793	3,176,069
Long-lived assets	255,153				270,613				255,153	270,613	319,664
France
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									1,222,742	1,581,663	1,625,407
Long-lived assets	308,983				329,923				308,983	329,923	240,507
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									2,279,920	2,481,051	2,451,936
Long-lived assets	$ 222,315				$ 205,363				$ 222,315	$ 205,363	$ 194,915